Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Control Module




IHKR2 CONTROL MODULE





- The IHKR2 control module is mounted in the same location and removed/installed the same way as the IHKR1 control module.
- Circuitry for blower speed control and left/right footwell flap operation is deleted from the module.
- The IHKR2 control module has only three (3) twenty-six pin connectors (now ELO-style).
- All three connectors are located at the right side of the module.
- Control module memory is non-volatile; fault codes stored there are retained after the ignition switch is turned "Off". The codes can be erased using the BMW DIS.
- Control modules installed in vehicles built from May 1990 on (software version "04" are codeable for variations such as left or right-hand drive.